a) In the first pic showing the EVAP canister mounted to the fenderwell, there is a 2 inch crack by the lower mounting area that seems to have compromised the canister interior - as white fiber
-like (charcoal?) material is exposed. Can this be a cause of a P0441 (large EVAP leak) code? I have already pressure tested the line to the purge valve and leak detector pump, in addition to a thorough inspection of all vacuum hoses and lines underhood and underside of car, all the way back to the EVAP canister.
2) Can someone explain how to remove the cream color plastic vacuum line with the black end-fitting connected to top of the EVAP canister (as pictured). I don't see any release tabs or otherwise on the fitting and I don't want to force it off at risk of breaking it. I noticed that it twists easily but won't come off.
Thanks in advance.

2) Can someone explain how to remove the cream color plastic vacuum line with the black end-fitting connected to top of the EVAP canister (as pictured). I don't see any release tabs or otherwise on the fitting and I don't want to force it off at risk of breaking it. I noticed that it twists easily but won't come off.
Thanks in advance.
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